Adhesive-applying mechanism.



PATENTED JULY 14, 1903.

J. G. I. BALZE. ADHESIVE APPLYING MECHANISM.

APPLIOATION FILED NOV. 13, 1902.

2 SHEETS-SHEET 1.

N0 MODEL.

Ivwe7 5 07"" PATENTED JULY 14, 1903,

J. c. F. BALZB. ADHESIVE APPLYING MECHANISM.

APPLIOATION FILED NOV. 13, 1902.

2 SHBETSSHEET 2 N0 MODEL In verc'l m5 NORRIS PzYms co. wnovoumo. wnsumc-Ton, nv c.

UNITED STATES Patented .l'uly 14, 1903.

PATENT OFFICE.

JOHN C. F. BALZE, OF NEW YORK, N. Y'., ASSIGNOR TO ROBERT HOE, OF NEW YORK, N. Y.

ADHESIVE-APPLYING MECHANISM.

SPECIFICATION forming part of Letters Patent No. 733,361, dated July 14, 1903.

Application filed November 13,1902. Serial No. 131,113. (No model.)

To all wltont it 77040;; concern.-

Be it known that I, JOHN C. F. BALZE, a citizen of the United States, residing at New York, county of New York, and State of New York, have invented certain new and useful Improvements in Adhesive-Applying Mechanisms, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

This invention relates to certain improvements in paste-applying devices.

In applying paste to moving material running at high speedsas, forinstance, the webs of paper in printing-machines, to which paste is applied on the run-it is necessary that the paste-applying blade or other device run at a high speed. In the constructions generally employed for the purpose of pasting webs the blade or other pasting device takes its adhesive from a fountain and delivers it to the web. The adhesive in these constructions is delivered, as is customary, by a fountain-roll which runs in a supply of adhesive. It is of course apparent that the speed of the applying device should be substantially equal to that of the web at the time it applies the adhesive thereto, and it is also'apparent that the speed of the applying device should be the same as or substantially the same as the speed of the fountain-roll at the time it takes its adhesive therefrom. It is impracticable, however, to run the fountain-roll at the same speed as the web, because the adhesive will fly off it by centrifugal force, so that the machinery, and frequently the web, becomes gummed and soiled. To avoid this difficulty, it has been proposed to run the fountain-roll at a slower speed than the web and operate the paste-applying blade by mechanism of such a character that the blade will move at the speed of the web at the time it is applying the adhesive to the web and will move at the speed of the fountain-roll at the time it is taking adhesive from said roll. The mechanism, however, which it has been proposed to employ is complicated and expensive and not always reliable in action.

The present invention has for its object to produce a simple, cheap, and effective mechanism by which adhesive can be taken from the fountain-roll running at one speed and applied to a web or other material moving at a different speed.

With this and other objects in view the invention consists in certain constructions and in certain parts, improvements, and combina- .tions, as will be hereinafter fully described end view of the construction shown in Fig. 2.

Fig. 4 is a detail'section View on the line 4 at of Fig. 3.

Referring to the drawings which illustrate one concrete embodiment of theinvention, 1 indicates the frame of a printing-machine, which may be of any usual construction and configuration. The machine selected to illustrate the invention prints on a web 2, which is printed and perfected by the usual couples, (indicated at 3 and 4, 5 and 6.) After being printed the web passes over a guide 7 and after being operated upon by the pasting device, to be hereinafter described, is or may be subjected to the action of a slitter or slitters 8, which cooperate, as usual, with a driven roll, said roll in the present instance being driven by means of a bevel-gear 9, which receives its motion from another bevelgear 10, mounted on the end of a Vertical shaft 11. This vertical shaft 11 is provided with a bevel-gear 12, which meshes with another bevel-gear l3, driven from the gearin g by which the usual collecting and'folding mechanism 14 is operated. This mechanism is driven in turn from a counter-shaft 16 by means of a train of gears, (indicated by dotted lines at 17 in Fig. 1.)

The adhesive-applying mechanism may be located at any desired point in the machine and may be varied widely in its details of construction. It embodies, however, a carrier which moves at a substantially constant speed. In the construction shown this carrierconsists of a sprocket-chain 18, said chain running over sprocket-wheels .19 and 20. The sprocket-wheel 19 is mounted on a shaft 21, which carries a gear 22, which receives its motion from a train of gears 22, which are ICO or may be driven from the slitting mechanism. The sprocket-wheel 20 is mounted on the shaft 23, said wheel and shaft being driven in the present instance by the chain 18, which constitutes the blade-carrier.

The number of paste-applying devices or blades employed maybe varied according to the circumstances in each case. In the construction shown two blades 24: are employed.

In the construction employed to illustrate the invention the adhesive is supplied from a fountain 25, which is or maybe of any usual construction. Running in this fountain is a paste-roll 26, which is driven in the construction shown by means of a gear 27, which meshes with a gear 28, mounted on the shaft 23, before referred to. The usual adjustable doctor-blade 29 is or may be provided, the fountain being supported by means of a bracket 30. The relation of the various gears with respect to the web supporting and forwarding devices is such that the fountain-roll moves at a speed considerably slower than the speed of the running web to which the paste is to be applied. In order to obtain the variation in speed of the blades and yet have the carrier run at a constant speed, the fountainroll 26 is so located with respect to the carriersupporting wheels and the path of the blades that the blades as they touch the fountainroll' and receive their supply of adhesive therefrom are moving in a substantially straight path, as is clearly indicated in Fig. 2. The path of the carrier and the supports therefor are so arranged with respect to the path of the web, however, that at the time when the blades touch the Web they will be moving in the present construction around the sprocket-wheel 19. The outer edges of the blades will therefore be describing a circle of a much greater radius than the radius of the sprocket-wheel, and the outer edges of the blades will therefore be moving much more rapidly than the blade carrier. In other words, the path of the web follows a line which is tangent to the circumference described by the outer edges of the blades as they are turning about their curved support.

It is apparent, therefore, that at the time when the blades touch the fountain they will be moving at the speed of the carrier, but at the time when they touch the web their operative parts will be moving at a greatly-increased speed. In order to control the position of the blades, one or both of the carrier-supports is made adjustable. As shown, the shaft 23 is journaled in eccentric bushings 31, located in supporting-arms 32, which arms, as shown, carry the pasting mechanism.

As shown in Fig. 1, two pasting mechanisms are employed, one being located above and one below the path of the web. As, however, these mechanisms are duplicates, it is not necesary to describe the second mechanism.

The details of the construction by which the invention is carried into effect may be varied within wide limits. \Vhile the invention is particularly adapted for use with printing machinery, it may be used in other relations. The invention is not, therefore, to be limited to the specific details of construction hereinbefore set forth or to the specific use described.

What is claimed is l. The combination with a paste-fountain, of webfeeding devices, a paste-applying blade arranged to make contact with the fountain and the web, a carrier for the blade, and means for moving'the carrier at a constant speed in a substantially straight path by the fountain, and in a curved path by the point where the blade contacts with the web, where by the speed of the operative part of the blade is varied, substantially as described.

2. The combination with a paste-fountain, of web feeding devices, a paste -applying blade arranged to make contact with the fountain and the web, an endless carrier for the blade, and means for causing the carrier to move in a substantially straight path as the blade passes the fountain and in a curved path as the blade passes the point of contact with the web, whereby the speed of the operative part of the blade is varied, substantially as described.

3. The combination with a paste-fountain, of web -feeding devices, a paste applying blade arranged to make contact with the fountain and the web, an endless carrier for the blade, a pair of curved supports for the carrier said supports being so located that the blade moves in a substantially straight path as it makes contact with the fountain and in a curved path around one of the supports as the blade makes contact with the web whereby the speed of the operative part of the blade is varied, substantially as described.

4. The combination with a paste-fountain, of web -feeding devices, a paste -applying blade arranged to make contact with the fountain and the web, an endless carrier for the blade, a curved support for the carrier opposite the point where the blade makes contact with the web, a second support lying behind the first support, the supports being so arranged that the blade moves in a substantially straight path as it passes the fountain and in a curved path as it passes the point of contact with the web, and means for adjusting one of the supports, substantially as described.

5. The combination with a paste-fountain, of web-feeding devices, a paste-applying blade arranged to make contact with the fountain and the web, an endless carrier for the blade, a curved rotating support for the carrier opposite the point Where the blade makes contact with the web, a second rotating support lying behind the first support, the supports being so arranged that the blade moves in a substantially straight path as it passes the fountain and in a curved path as it passes the point of contact with the web, and means for adjusting one of the supports, substantially as described.

6. The combination With a paste-fountain having a rotating delivery-roll, of Web-feeding devices, a paste-applying blade arranged to contact with the fountain-roll and the web, a sprocket-chain forming a carrier for the blade, a sprocket-Wheel located opposite the point where the blade makes contact with the Web so that the blade is moving in a curved path at this point, and a second sprocketwheel located behind the first sprocket-Wheel and arranged so that the blade travels in a substantially straight path as it passes the fountain-roll, substantially as described.

7. The combination with a paste-fountain having a rotating delivery-roll, of Web-feeding devices, a paste-applying blade arranged witnesses.

JOHN C. F. BALZE. Witnesses:

F. W. H. CRANE, W. F. MORGAN. 

